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Kupferschmid FAL, Crovadore J, Fischer C, Lefort F. Shall the Wild Boar Pass? A Genetically Assessed Ecological Corridor in the Geneva Region. Sustainability 2022; 14:7463. [DOI: 10.3390/su14127463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Landscape fragmentation caused by road infrastructures represents a major threat to the genetic diversity of a region. The resulting genetic isolation between subpopulations may lead to consanguinity, and consequently to population collapse and extinction. However, the construction of wildlife crossings can help maintain connectivity. In the present paper, we evaluated the genetic spatial structuring of populations of wild boars (Sus scrofa) in three areas of the Geneva region connected by an ecological corridor. Those areas are cut off either by a highway that is crossed by a wildlife overpass or by an anthropized sector. Genetic profiling with 9 nuclear microsatellite markers yielded 61 single profiles, which allowed for clustering, parentage, and linkage disequilibrium analyses, uncovering the populations’ genetic structure. We also evaluated whether the genetic structure was affected by the sex of individuals. In our analyses, all individuals clustered into a single genetic group, suggesting that no structure limited significantly the gene flow in the region. However, a recent admixture indicated a potential increase in the gene flow between two of the subpopulations due to the wildlife overpass, while the other part of the ecological corridor was not or was only partially functional. Genetic distances between males were significantly higher than between females, although the role of sex remains unclear as to its influence on population genetics. Finally, in order to avoid a subregion becoming fully isolated, urbanization planning should consider this genetic evaluation and proceed with further monitoring, especially by focusing on species more sensitive to landscape fragmentation.
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Cozzi G, Hollerbach L, Suter SM, Reiners TE, Kunz F, Tettamanti F, Ozgul A. Eyes, ears, or nose? Comparison of three non-invasive methods to survey wolf recolonisation. Mamm Biol 2021. [DOI: 10.1007/s42991-021-00167-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractThe development and use of cost-effective and appropriate survey methods to assess species distribution and to monitor range expansion and contraction of wild populations is crucial due to the limited financial resources for conservation. Of particular importance, yet little studied, is the ability to collect information before a wild population is well established, i.e. at the early stages of recolonisation. During 2018 and 2019, we used camera traps, audio recorders, and scat detection dogs simultaneously to investigate composition, detection probability, and territorial extent of a pack of wolves in the Swiss Alps. We compared the efficacy of these survey methods by assessing sampling effort, data obtained, and costs. We show that, under the presented setup, camera traps and scat detection dogs substantially outperformed audio recorders in detecting wolves, representing the packs’ territorial extent, and revealing the number of adult wolves. The detection dogs did not detect pups but, unlike the other methods, allowed the identification of single individuals. The use of four camera traps during 13 weeks, a 24-km-long transect walked with the detection dog, or the use of one audio recorder during 148 weeks were necessary to obtain a comparable wolf detection probability. Our results show that no single method was able to return all information that we hoped to collect. Comprehensive and cost-effective information was best obtained by combining data from camera traps and detection dogs. We suggest both methods to be simultaneously used to successfully investigate wolf recolonisation into historical range.
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Da Silva AR, De Oliveira ML, Duarte JMB. Incorporating the sampling effectiveness of detection dogs in the faecal standing crop method. EUR J WILDLIFE RES 2020; 66. [DOI: 10.1007/s10344-020-01388-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Paul S, Ghosh T, Pandav B, Mohan D, Habib B, Nigam P, Mondol S. Rapid molecular assays for species and sex identification of swamp deer and other coexisting cervids in human-dominated landscapes of the Terai region and upper Gangetic plains, northern India: implications in understanding species distribution and population parameters. J Genet 2019. [DOI: 10.1007/s12041-019-1094-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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de Oliveira ML, do Couto HTZ, Duarte JMB. Distribution of the elusive and threatened Brazilian dwarf brocket deer refined by non-invasive genetic sampling and distribution modelling. EUR J WILDLIFE RES 2019; 65. [DOI: 10.1007/s10344-019-1258-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dahl KA, Portnoy DS, Hogan JD, Johnson JE, Gold JR, Patterson WF. Genotyping confirms significant cannibalism in northern Gulf of Mexico invasive red lionfish, Pterois volitans. Biol Invasions 2018; 20:3513-26. [DOI: 10.1007/s10530-018-1791-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Mantellatto AMB, Caparroz R, Christofoletti MD, Piovezan U, Duarte JMB. Genetic diversity of the pampas deer (Ozotoceros bezoarticus) population in the Brazilian Pantanal assessed by combining fresh fecal DNA analysis and a set of heterologous microsatellite loci. Genet Mol Biol 2017; 40:774-780. [PMID: 28981561 PMCID: PMC5738621 DOI: 10.1590/1678-4685-gmb-2016-0323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/20/2017] [Indexed: 11/29/2022] Open
Abstract
The pampas deer (Ozotoceros bezoarticus) is close to being
classified as ‘globally threatened’, with the largest population occurring in
the Brazilian Pantanal. Since capture is stressful to these animals,
non-invasive sampling methods such as the use of feces can provide reliable
sources of DNA. The aim of this study was to use fecal samples to evaluate the
genetic variability of the Brazilian Pantanal population of pampas deer. Six
heterologous microsatellite markers were used to screen 142 stool specimens.
Seventy-four deer were identified, of which 50 adults were used to determine the
genetic characteristics of the population. The Pantanal population showed high
genetic diversity (mean number of alleles per locus = 11.5, expected
heterozygosity = 0.75). This is the first investigation to characterize a South
American deer species using fecal DNA and demonstrates the usefulness and
efficiency of this approach, as well as the feasibility of obtaining information
that could not have been easily obtained by traditional DNA sampling. Our
findings suggest that management strategies for this species may be much more
effective if applied now when the population still shows high genetic
variability.
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Affiliation(s)
- Aline Meira Bonfim Mantellatto
- Núcleo de Pesquisa e Conservação de Cervídeos, Departamento de Zootecnia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
| | - Renato Caparroz
- Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
| | - Maurício Durante Christofoletti
- Núcleo de Pesquisa e Conservação de Cervídeos, Departamento de Zootecnia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
| | - Ubiratan Piovezan
- Centro de Pesquisas Agropecuárias do Pantanal (CPAP), Embrapa, Corumbá, MS, Brazil
| | - José Maurício Barbanti Duarte
- Núcleo de Pesquisa e Conservação de Cervídeos, Departamento de Zootecnia, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
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Costa EBV, de Oliveira ML, Peres PHDF, Grotta-Neto F, Vogliotti A, Piovezan U, Duarte JMB. Low accuracy of identifying Neotropical deer species by scat morphology. Studies on Neotropical Fauna and Environment 2016. [DOI: 10.1080/01650521.2016.1263418] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Eugênia Barbosa Varella Costa
- Núcleo de Pesquisa e Conservação de Cervídeos (NUPECCE), Universidade Estadual Paulista (UNESP), Jaboticabal, Brazil
| | - Márcio Leite de Oliveira
- Núcleo de Pesquisa e Conservação de Cervídeos (NUPECCE), Universidade Estadual Paulista (UNESP), Jaboticabal, Brazil
| | - Pedro Henrique de Faria Peres
- Núcleo de Pesquisa e Conservação de Cervídeos (NUPECCE), Universidade Estadual Paulista (UNESP), Jaboticabal, Brazil
| | - Francisco Grotta-Neto
- Núcleo de Pesquisa e Conservação de Cervídeos (NUPECCE), Universidade Estadual Paulista (UNESP), Jaboticabal, Brazil
- Laboratório de Biodiversidade, Conservação e Ecologia de Animais Silvestres (LABCEAS), Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Alexandre Vogliotti
- Universidade Federal da Integração Latino-Americana (UNILA), Parque Tecnológico Itaipu, Foz do Iguaçu, Brazil
| | - Ubiratan Piovezan
- Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Corumbá, Brazil
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